Intermittently-operating apparatus



Dec. 16, 1924. 1,519,168

1-:. s. RlNALDY INTERMITTENTLY OPERATING APPARATUS Filed June 28, 1921 2 Sheets-Sheet 1 10 4 Z6 @mimntoz E. S. RINALDY INTERMITTENTLY OPERATING APPARATUS Filed June 28, 1921 2 Sheets-Sheet 2 a uemboz jfz'lmlj Patented Dec. 16, 1924.

UNITED STATES EDWARD S. RINALDY, OF ROCKVILLE CENTER, NEW YORK.

INTERMITTENTLY-OPERATING APPARATUS. 7

Application filed June 28, 1921.

To all whom may concern:

Be it known that I, EDWARD S. RINALDY, a citizen of the United States, and a resident of Rockville Center, in the county of Nassau and State of New York, have invented cer tain new and useful Improvements in Intermittently-Operating Apparatus, of which the following is a specification.

The invention relates to improvements in apparatus for use in connection with mechanism such as motion picture taking apparatus, more particularly to mechanism for op erating the same intermittently, for example, in connection with the production of so called cartoon pictures in which objects are animated to produce a screen subject carrying out the artists conception.

The invention has for its object to afford mechanism which may be operated in a manner such that a predetermined length of film may be advanced as desired and at any particular time interval. A further object of the invention is to so construct the driving mechanism that it may be reversible, as for example, for the purpose of introducing other features into the film and for trick work. A. still further object of the invention consists in mechanism which shall stop always at a predetermined point, in either direction of its rotation, so that accuracy in the production of the film will result. Moreover, the mechanism comprehends positive driving or clutching means whereby the driving element will run freely when the apparatus is not operative and all friction devices, which tend to heat up the apparatus, will be eliminated.

In the accompanying drawings which illustrate the invention Fig. 1 is a plan of the improved apparatus.

Fig. 2 is a front elevation thereof.

Fig. 3 is an end elevation.

Fig. 1 is a sectional view taken on the line 4-4, Fig. 2.

Similar characters of reference designate corresponding parts thruout the several views.

Referring to the drawings, 10 designates a base upon which the apparatus may be mounted and carries a bearing 11 for the driving wheel or pulley 12 of the apparatus.

A further bearing 13 is provided for a driven shaft 14: and thru which shaft rotation is to be communicated in any welllmown or special manner to the motion pic- Serial No. 481,016.

ture apparatus or stop spindle thereof (not shown) and which it is desired to actuate intermittently, as for the purpose of photographing the previously prepared cartoons.

Between the driving pulley 12 and the driven shaft 1% is provided mechanism for connecting at will the one to the other in order to con'nnunicate the rotation of the former to the latter.

To this end, a gear wheel 1.5 is revolubly mounted on the shaft let which carries a toothed disc 16 and the shaft 141 is provided with a slotted cylindrical or drum portion 17 rotating therewith. The latter carries a pivoted pawl member 18 designed under certain conditions to lock in a recess or notch 19 of the toothed member 16 and thus to clutch the two parts of the apparatus together for transmittting the rotation of the one to the other. The pawl 18, normally, would be held in engagement with a notch 19 thru the action of a spring 20 which is mounted on a mutilated disk 17 attached to the drum 17, said spring bearing against the inner end of the pivoted pawl member. However, to maintain the pawl out of engagement, except during the desired periods, means are provided to prevent the inner end of said pawl from projecting beyond the periphery of the disc 17 and it will thus normally be maintained out of engagement with the toothed member 16, as shown in Fig. 1 of the drawings.

F or this purpose, a lever 25 is pivotally mounted on the base 10 and is spring-urged thru the action of a spring 26 toward the said drum 1?. Lever 25, moreover, carries a roller 27, which is designed to bear upon the circumference of the mutilated disk 17 of the drum 17 and to normally engage in a notch 18 thereof with the inner end of the pawl 18 to hold the same within the disc. As soon, however, as the lever 25 is withdrawn or moved backwardly sufficiently, pawl 18 will be urged into engagement with a notch 19 under the operation of spring 20, causing thereby the drum 17 and its shaft 14 to be rotated thru the motion communicated thereto from the wheel 12, the roller 27 running on the circumference of disc 17. It will he understood that the arm 25 is only to be momentarily withdrawn until its disengagement with the notch is effected to permit pawl 18 to lock in notch 19, whereupon as the drum 1.7

rotates and the inner end of the pawl 18 again comes into engagement with the roller 27, said end will be forced inwardly into the drum and the pawl disengaged thereby. This efi'ects stoppage of the rotation of shaft let at exactly one complete revolution thereof so that there will be no misframing of the plcture. It will be understood, of course, that the mechanism is also suitable "for a reversal of the driving motion so that, if desired, the film may be reversed for the purpose of introducing other features and for trick work and the like. A very simple and satisfactory device is thus atlorded and one which will operate with accuracy.

I claim:

In intermittently operating and reversible apparatus: a continuously running driving member, and a member adapted to be driven therefrom; and intermediate mechanism for connecting said driving member with said driven member and comprising a toothed disc rotatable with the driving member, a drum carried by said driven member, a pawl pivotally mounted therein, a spring carried by said drum, :acting on said pawl and tending to force same in a direction at right angles to the plane of the disk for engagement therein, a spring urged lever, and a roller carried thereby, engaging the said drum member and adapted to bear upon one end of'the pawl to maintain the latter out of engagement with the toothed disk.

Signed at New York, in the county of New York and State of New York, this 27th day of J une, A. D. 1921.

EDWVARD S. RI-NALDY. 

